Abstract
A pneumatic simulator of the knee joint with five DOF was developed to determine the correlation between the kinematics of the knee joint, and the wear of the polyethylene componenent of a TKR prosthesis. A physical model of the knee joint with total knee replacement (TKR) was built by rapid-prototyping based on CT images from a patient. A clinically-available prosthesis was mounted on the knee model. Using a video analysis system, and two force and contact pressure plates, the kinematics and kinetics data were recorded during normal walking of the patient. The quadriceps muscle force during movement was computed using the Anybody software. Joint loadings were generated by the simulator based on recorded and computed data. Using the video analysis system, the precise kinematics of the artificial joint from the simulator was recorded and used as input for an explicit dynamics FE analysis of the joint. The distribution of the contact stresses in the implant was computed during the walking cycle to analyze the prosthesis behavior. The results suggest that the combination of axial loading and anterior-posterior stress is responsible for the abrasive wear of the polyethylene component of the prosthesis.
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Nordin, M., Frankel, V.H.: Basic Biomechanics of the Musculoskeletal System, p. 400. Lippincott Williams & Wilkins (2001)
De Lima, D.D., Chen, P.C., Colwell, C.W.: Polyethylene contact stresses, articular congruity, and knee alignment. Clin. Orthop., 232–238 (2001)
Perie, D., Hobatho, M.C.: In vivo determination of contact areas and pressure of the femorotibial joint using non-linear finite element analysis. Clin. Biomech. (Bristol, Avon) 13, 394–402 (1988)
Waldman, S.D., Bryant, J.T.: Dynamic contact stress and rolling resistance model for total knee arthroplasties. J. Biomech. Eng. 119, 254–260 (1997)
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Gruionu, L.G., Gruionu, G., Pastrama, S., Iliescu, N., Avramescu, T. (2009). Contact Studies between Total Knee Replacement Components Developed Using Explicit Finite Elements Analysis. In: Yang, GZ., Hawkes, D., Rueckert, D., Noble, A., Taylor, C. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI 2009. MICCAI 2009. Lecture Notes in Computer Science, vol 5762. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04271-3_39
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DOI: https://doi.org/10.1007/978-3-642-04271-3_39
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04270-6
Online ISBN: 978-3-642-04271-3
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